1.   A large piece of aluminum skin, the outer sheath of a midsection of the airplane, was also lifted Tuesday and parts from a third engine were spotted.

2.   In addition, some bullets could penetrate the aluminum skin of a plane, but most airplanes are designed to prevent such a hole from developing into a tear.

3.   In flight, planes build up an external charge on their aluminum skin, but that is dissipated through small wands on the wings.

4.   It was only found during a recent maintenance overhaul when mechanics noticed outward dents in the aluminum skin of the rudder.

5.   Salt is forbidden by federal statute because of its corrosive effect on the thin aluminum skin of an airplane, delicate parts of jet engines and landing gear.

6.   The bolts, spaced about two inches apart, hold the aluminum skin to the skeleton of the tail.

7.   The plane managed to land on a grassy strip short of the runway with its aluminum skin torn open in places.

8.   A scan of the riverbed revealed the aircraft in remarkably good condition with silt from a newly built dam protecting their aluminum skin.